Grove - TDS Sensor/Meter for Water Quality

The Seeed Grove – TDS Sensor measures dissolved solids in water and works with any Arduino, offering 3.3/5V support and a waterproof probe — ideal for water filters, hydroponics and aquarium monitoring.

The Seeed Grove – TDS Sensor is an Arduino-compatible module for measuring Total Dissolved Solids (TDS) in water, providing a simple way to assess water quality. It’s suitable for home water filters, hydroponics, aquariums and other water-testing projects.

The sensor measures dissolved solids to give an indication of overall water quality and can be used in applications such as TDS meters, well-water testing, hydroponic nutrient monitoring and aquarium maintenance.

It supports 3.3V and 5V input, with a 0–2.3V output, ensuring compatibility with all Arduino boards. A waterproof probe is included, making sampling and testing easy and reliable.

With the SenseCAP S2110 Sensor Builder and S2100 data logger, you can easily turn the Grove into a LoRaWAN® sensor. Seeed not only helps you with prototyping, but also offers you the possibility to expand your project with the SenseCAP series of robust industrial sensors.

Features

• Analogue signal, high accuracy measuring: The TDS measurement range is 0-1000ppm.
• Waterproof TDS probe: Use a waterproof TDS probe not easier corroded by water
• Good compatibility: Where 0 ~ 2.3V output voltage can be easily implemented in 3.3/5V control system
• Grove unified socket: The product ensures "Plug and Play" and could be versatile for various applications of Grove

Specifications

Hardware Overview

Resources

• Learn - Grove TDS Sensor

Package Contents

• 1x Grove - TDS Sensor
• 1x 20cm Grove Cable 
• 1x Waterproof TDS Probe